本文選題：堆垛機　切入點：有限元　出處：《昆明理工大學》2011年碩士論文　論文類型：學位論文

【摘要】：單立柱有軌巷道式堆垛機是自動化立體倉庫的核心物流設備,其機架結構的穩(wěn)定性直接影響著整機的性能。堆垛機在自然狀態(tài)下的靜力學分析和滿載高速運行狀況下的動力學分析是檢驗其穩(wěn)定性的重要標準,同時在設計時考慮機架結構的振動情況,對提高堆垛機的各種性能,都具有十分重要的意義。 本文主要進行堆垛機的靜力學分析和滿載高速運行下的動力學分析。首先,在Pro/E中建立堆垛機的三維簡化模型,導入ANSYS后對模型施加受力和邊界約束,對機架進行滿載下的靜力分析,得出了當載貨臺位于高位時,堆垛機的變形量和所受應力最大。其次在靜力分析的基礎上,對堆垛機進行了動力學研究。文中首先對堆垛機載貨臺滿載貨物并處于三個不同位置下,同時機體以0.5 m/s2的加速度向前運行時的模型進行分析。得出了當載貨臺位于低位時,堆垛機的變形量最大,當載貨臺位于高位時,堆垛機所受應力最大。其次分析了載貨臺處于三個不同位置并滿載貨物,同時堆垛機以0.5 m/s2的加速度向前運行,載貨臺以0.4 m/s2的加速度上下運行時,堆垛機上各部分的受力情況。得出了當載貨臺位于低位時,堆垛機的變形量最大。當載貨臺位于高位時,堆垛機所受應力最大。 最后,在動力學分析中,對引起堆垛機變形量最大的兩種情況進行了有預應力的模態(tài)分析,得出了機體的前十階固有頻率和固有振型。通過分析振型,找出堆垛機上存在的薄弱環(huán)節(jié)位于立柱頂端和載貨臺上,并提出相應的改進意見。為后續(xù)產品的設計和改進提供參考。
[Abstract]:Single pillar track-type stacker is the core logistics equipment of automatic warehouse. The statics analysis of stacker in natural state and dynamic analysis under full load and high speed are the important criteria to test the stability of the stacker. At the same time, it is of great significance to improve the performance of stacker by considering the vibration of frame structure. In this paper, statics analysis of stacker and dynamic analysis of stacker under full load and high speed operation are carried out. Firstly, the three-dimensional simplified model of stacker crane is established in Pro/E. After introducing ANSYS, the model is subjected to force and boundary constraints. The static analysis of the frame under full load shows that the deformation and stress of the stacker are the largest when the loading platform is at the high position. Secondly, on the basis of static analysis, The dynamics of the stacker is studied in this paper. Firstly, the model of the stacker with full load and three different positions is analyzed, and the model of the machine moving forward with an acceleration of 0.5 m / s ~ 2 is obtained when the cargo platform is in the low position. The deformation of the stacker is the largest, and the stress of the stacker is the greatest when the loading platform is in the high position. Secondly, it is analyzed that the loading platform is in three different positions and the cargo is loaded, and the stacker runs forward with an acceleration of 0.5 m / s ~ 2. When the loading platform is running at the acceleration of 0.4 m / s ~ 2, the stress on each part of the stacker is obtained. When the loading platform is in the low position, the deformation of the stacker is the largest, and when the loading platform is in the high position, the stress of the stacker is the greatest. Finally, in the dynamic analysis, the pre-stressed modal analysis is carried out for the two cases that cause the largest deformation of the stacker crane, and the first ten natural frequencies and natural modes of the airframe are obtained. The weak links on the stacker are found at the top of the pillar and the loading platform, and the corresponding suggestions are put forward to provide reference for the design and improvement of the subsequent products.
【學位授予單位】：昆明理工大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH246

【引證文獻】

相關碩士學位論文 前1條

1 龔秋生;堆垛機的機械結構及控制系統(tǒng)設計研究[D];沈陽理工大學;2013年

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本文編號：1560715